Does anyone know of any apps or games that have securely implemented attestation, and securely recognize GrapheneOS and check the patch level and switch to pinning-based trust, and don't allow unpatched devices (missing a few months of patches at most (I know (almost) every month there's high and critical severity patches, but I'm trying to be realistic because no game would require the very latest patches))? I'm curious if beyond just being passively compatible with GrapheneOS or actively permitting it, if there's any apps that actually properly use attestation as a pro-consumer security feature? I'm curious how many app developers have bothered to read the official attestation compatibility guide (don't get me wrong, I'm not trying to discourage anyone from sending this to app devs), and maybe it's a good idea to showcase them as good examples beside the bad examples.
I have one example so far:
https://play.google.com/store/apps/details?id=app.attestation.auditor.play
(And that's kinda cheating…)
Any more??